| 2021 World Championships | |
| Location: |  Miami |
| Dates: | 8–12 December 2021 |
| Competitors: | 18 boats |
| Venue: | Coconut Grove Sailing Club |
The 2021 Melges 20 World Championships were held from 8 to 12 December 2021 in Miami, United States.[1]
| One Design Division | Kuai Daniel Thielman Alec Anderson Lucas Calabrese Rayleen Thielman |  Russian BogatyrsIgor Rytov Michele Ivaldi Anton Sergeev | Honeybadger Harry Roepers Ian Liberty Michael Menninger Katy Nastro |
| Stage | Date | Winning boat | Country | Skipper | |
|---|---|---|---|---|---|
| 1 | 9 December | Nika | Vladimir Prosikhin | ||
| 2 | 9 December | Grinning Streak | Rhonda Joyce | ||
| 3 | 10 December | Kuai | Daniel Thielman | ||
| 4 | 10 December | Honeybadger | Harry Roepers | ||
| 5 | 10 December | Kuai | Daniel Thielman | ||
| 6 | 11 December | Kuai | Daniel Thielman | ||
| 7 | 11 December | Russian Bogatyrs | Igor Rytov | ||
| 8 | 11 December | Red Sky Sailing Team | Paul Reilly | ||
| 9 | 12 December | Ghostrider | Jennifer Canestra | ||
| 10 | 12 December | Honeybadger | Harry Roepers |